Read More

"The payroll server was compromised and we worked hard over a 48-hour period to get that resolved. There was a risk that we would not be able to process the payroll for Thursday so we felt it was appropriate to inform our employees.

"We have reported the incident to the National Cyber Security Centre and Staffordshire Police and our IT team worked incredibly hard overnight to ensure that the wages could be processed in time.

Read More

The company has apologised to staff for any 'inconvenience' or 'concern'.

In the memo to staff, Mr Cameron wrote: "We cannot rule out the possibility that payroll data has been accessed and we recommend that you are extra vigilant in relation to any unexpected or unauthorised activity on your bank account and your credit profile.

"I totally understand any inconvenience or concern this may cause, especially at this time of year, and I apologise on behalf of the company.